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Be it known that I, GEoRGE H. POOL, of New York, in the county of New York, and State of New York, "have invented a new and useful Improved Spring Bed, and I do hereby declare that the following is a full, clear, and exact description of the. construction Yand operation'of the same, reference being had to the accompanying drawings, making a part of this speci'iication, in which- Figure 1 is a top view, the upper portion of the gnre representing the bed with the slats in position, and the lower portion showing the same with the slats removed.

Figure 2 is a longitudinal vertical section.

Explanation of Figures'. y

a a', stout' plank or joists constituting the head and foot of the framework. b bl, thin wooden sides of the framework. a c', thin wooden slats, lying longitudinally. el d', pliant wooden slats mortised into .the-plank a, at the head of the bed, slanting upward at an angle with the side of the plank a. f f, slats similar to those lettered d d', but longer and mortised into the plank al at the foot of the bed. g g g g, elongated orifices in' the pliant slats d d f f, near their upper extremities. h 7e, pins fastened-at one end to the horizontal slats c c, and passing through the orifices g g g g. t' z', pins passing through the pins h h, beneath the slats d dff, and securing them in position. i

. Construction and Operation.

The framework a a b bf having been constructed,l the thin wooden slats d d are mortised into the stout head-plank a, making an angle with it, and in such a. manner that the otherextremities of the slats are on a level with the top of the framework. The slats f f similar to or longer by a few inches than ,those lettered d d are in like manner mortised into the foot-plank a', making the same or a greater angle with its side than d d', made with a the upper extremities of f f .being on the same level with those of d d. The slats e c', of

similar width to d d and f f', are placed horizontally and longitudinally, resting on d d', Sto., Iand ff', dto.,- and.

held in position by the pegs or pins le le, which pass through the orifices g g, 8m., while the pins z'z prevent the pegs 'L L from being Withdrawn from g g, &c., on the depression of either extremity of the slats a c, and thus I serve to keep the whole mechanism in position. The orilicesgg,V Ste., are made of suiieientl size to admit of fr ee movement of the pegs'le h, on the depression and elevation of the slats'.

The great advantage of the improved spring bed consists in that, while the elasticity of the horizontal slats is added to that of the inclined slats, the whole of this elasticity is evenly distributed over the whole surface of the bed; for the slats d at the head of the bed, being made shorter thanthose l'etteredff, at the foot of the bed, or being set at a more acute angle, or both, offer greater resistance to the superincumbent body just'at the point where the weight is greatest, thereby maintaining the surface of thbedin level position.

The"improved spring bed may be set up in its ownframework, or may be'adapted to any other kind of bedstead now'in use.

I claim as my invention, and 'desire to secure by Letters Patent-4- The rails c c', resting on the springs dd and f f and attached thereto by means of .the pins z h passing through the slots g g', said springs being made of greater or 'less elasticity by varying their length, or the angle at which they are inserted in a and a', or by both of these means, as described and arranged.

' GEORGE H. POOL.

I Witnesses:

NATH. A. PRENrrss; E. H." WILLIAMS. 

